# STCW ASD Cert Prep vs The Nautical Guyd

The clearest difference is in-app purchases: The Nautical Guyd at none against STCW ASD Cert Prep's 2. The Nautical Guyd also leads on update cadence (monthly vs every 3 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. STCW ASD Cert Prep sells 2 in-app purchases, starting at $9.99 per month. The Nautical Guyd asks for nothing beyond the download.

STCW ASD Cert Prep ships an update every 3 months, The Nautical Guyd monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | STCW ASD Cert Prep | The Nautical Guyd |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 9 MB | 64 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [Resbee Info Technologies private limited](https://appshunter.io/developer/1536576990) |

## What reviewers say

### STCW ASD Cert Prep

[App page](https://appshunter.io/ios/app/stcw-asd-cert-prep/id6740270487)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $9.99 | per month |
| Lifetime version | $24.99 | one-time |


### The Nautical Guyd

[App page](https://appshunter.io/ios/app/the-nautical-guyd/id6757754222)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is STCW ASD Cert Prep free?

STCW ASD Cert Prep is free to download, with in-app purchases available.

### Is The Nautical Guyd free?

The Nautical Guyd is free to download, with no in-app purchases.

### Do STCW ASD Cert Prep or The Nautical Guyd have ads?

Neither STCW ASD Cert Prep nor The Nautical Guyd shows ads.

### Which is updated more often, STCW ASD Cert Prep or The Nautical Guyd?

STCW ASD Cert Prep ships an update every 3 months, and The Nautical Guyd monthly. Most recently, STCW ASD Cert Prep was updated on October 30, 2026 and The Nautical Guyd on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*